22422444444 has 72 divisors (see below), whose sum is σ = 58387832048. Its totient is φ = 7250031360.

The previous prime is 22422444433. The next prime is 22422444461. The reversal of 22422444444 is 44444422422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22422444399 and 22422444408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415464 + ... + 466320.

Almost surely, 2^22422444444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22422444444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29193916024).

22422444444 is an abundant number, since it is smaller than the sum of its proper divisors (35965387604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22422444444 is a wasteful number, since it uses less digits than its factorization.

22422444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51235 (or 51230 counting only the distinct ones).

The product of its digits is 262144, while the sum is 36.

Adding to 22422444444 its reverse (44444422422), we get a palindrome (66866866866).

The spelling of 22422444444 in words is "twenty-two billion, four hundred twenty-two million, four hundred forty-four thousand, four hundred forty-four".